Book-support attachment for desks and the like



May 8,'1928. 1,668,721

C. S. JOHNSON,

BOOK SUPPORT ATTACHMENT FOR DESKS AND THE LIKE Filed July 14. 1924 2Sheets-Sheet 1 Enuenfoz (Wm Zea S J07z7rsaw May 8, 1928.

C. S. JOHNSON BOOK SUPPORT ATTACHMENT FOR DESKS AND THE LIKE Filed July14, 1924 2 Sheets-S heet 2 Z 5 m W n m h a J S M w /M, m. Mm W is movedfor any reason.

Patented May s, 1928.

CHARLES S. Jormsombor nnrnorr, MICHIGAN.

BOOK-SUPPORT ATTACHMENT Application filed July 14,

This invention relates generally to stands havingmovable arms forsupporting books, music, periodicals and other articles, and refers moreparticularly to stands of this type which may be readil attachedto-desks or other articles of furniture so thatthe books, etc, may beswung over the top of the desk to a convenient position for use by aperson seated at .the desk.

One of the essential objects of the invention is to provide a stand ofthis type that may be easily and quickly attached to or removed from adesk or other standard article of furniture without marring the same.

Another object is to provide simple and eifectivemeans for attaching thestand to the desk so that the weight of the desk may be utilized insteadof a heavy base for the stand to prevent the latter from ti ping overwhen a heavy book or other artic e is placed upon the supporting arm ofthestand.

A further object is to provide means for preventing the stand fromturning on the floor relative to the desk when the latter Still anotherobject is to provide a strong and durable stand that is simple inconstruction and that can be manufactured at comparatively low cost.

With the above and other objects in view the invention consists incertain'novel fea-. tures of construction, combination and arrangementof parts as will be more fullydescribed and particularly pointed out inthe appended claims.

In the accompanying drawings V Figure 1 is a perspective viewof a standembodying my invention attached to a fiat top desk; y a

Figure 2 is a vertical sectional view through the stand; 1 r

Figure 3 is a top plan view of the stand.

Figure 4 is a side elevation of the stand.

Figure 5 is a sectional view taken on the line 5-5 of Figure 3.

Figure 6 is a sectional view through the horizontal arms and showing theholder and adjusting screw in elevation.

Figure 7 is a perspective view of a slight modification. l

Figure 8 is an enlarged detail elevation II'OR nnsxs Ann rm: LIKE.

n24. Serial No. 725,988.

of the ball racesupporting the arms shown in Figure 7.

Figure 9 is a sectional view taken on the l1ne 99 of Figure 7. t

Figure 10 is a sectional view taken on the plane indicatedby theline10-10 of Figure 7. a t

Referring now to the drawings in which 11kt} characters ofrefereucedesignate corresponding parts throughout the several and the uprightsections 7 of the standard I 3, While the tube 8 is preferably bent atits opposite ends to-provide the leg .por

tions 9. A suitable tube 10 is secured to the'leg portions of the tubes6, while suit able tubes 11 are preferably connected at their oppositeends to the leg portions 6 and 9 respectively of the tubes 5 and 8 tobrace and reinforce the same.

In order that the arm 4 may be swung freely about the standard 3 andatthe same time will have apositive support, I preferably providesuitable metal castings 13 and l ithat are mounted upon the uprightsections 7 of the standard 3 asshown in Figure 2 of the drawing. Thecasting 13 is provided with a central opening 15 for receivingthevertical pivot portion 16 of the arm 4 and has depending lugs 17 whichfit snugly within the upper ends of the upright sections 7 of thestandard. The casting 14 is preferabl sleeved upon the sections 7 at thelower on s thereof and is provided intermediate its ends with a taperedsocket 18 which forms a bearing for the tapered lower end of thevertical pivot portion 16 of the' arm 4. Any suitable means may bemounted on the horizontal arm4 for supporting articles of differentkinds. As shown, I preferably provide a suitable holder19 for books,

catalogues, music and the like, having a central stud 20 that preferablyextends through a suitable boss 21 at the free end of the arm 4 and isclamped in position by means of a suitable winged nut 22 threadedlyengaging the stud 20 below the arm 4. Thus, with this construction thearm 4 may be readily swung over a suitable flat top desk 23 forsupporting books, etc, in a convenient position for use by a personseated at the desk. Any suitable means such as a set screw 26 threadedlyengaging the casting 13 may be employed for holding the arm 4 inadjusted position.

In order that the arm 4 may be raised orv lowered as desired above thetop of the desk, the casting 14 is preferably adapted to be movedvertically upon the sections 7 of the standard and may be held in anadjusted position by means of suitable set screws 25. t

In order that the weight of the desk may be utilized for preventing thestand from tipping over when a catalogue or other heavy article isplaced on the holder 19, I prefer-- ably provide a horizontal bearingplate 27 for taking the pressure at the bottom of the desk. As shown,the plate 27 is preferably formed of two telescopically engaging secstions 28 and 29 respectively, having upstanding flanges 30 at theirouter ends for clamping engagement with the sides of the drawerreceiving end portion 31 of the desk. If desired, suitable felt pads 32may be secured to the inner faces of the flanges 30 to prevent thelatter from marring the desk. Any suitable means such as a bolt 33 maybe used to adjust the sections 28 and 29 respectively of the plate 27.As shown, this bolt extends freely from a depending lug 34 on thesection 29 and threadedly engages a depending lug 35 on the section 28.Thus, the clamping engagement with the desk may be easily and quicklyeffected by merely rotating the bolt 33..

For preventing the frame 2 from turning relative to the desk when thelatter is moved for any reason, I preferably provide three verticalbolts 39 that are carried by the frame 2 and are adapted to engagesuitable sockets 40 projecting downwardly from the sections 28 and 29respectively of the hearing plate at the outer free ends thereof. Asshown, two of the bolts 39 threadedly engage an arm40 that is slidablymounted on parallel rods 41 extending between the tubes 6 and 8respectively at the opposite ends of the frame while the third bolt 39preferably engages an enlargement 42 at the outer end of a horizontalarm 43 projecting laterally from an arm 44 that is slidably mounted onthe. parallel rods 41. Thus, with this construction, the arms 40 and 44maybe readily adjusted on the parallel rods 41 to accommodate drawerreceiving portions of different widths and to permit the stand to bemoved out or in with respect to the desk according to the distance thetop of the desk projects over the end walls thereof.

In order that the stand may be raised or lowered with respect to thedesk when necessary, I preferably provide suitable feet 45 whichthreadedly engage the lower ends of the leg portions 6 and 9respectively of the tubes 5 and 8. Thus, any one of these feet may beadjusted-with respect to the leg por- Moreover, the form of attachmentis such that the weight of the desk is utilized to prevent the standfrom tipping over, consequently it is not necessary to provide the standwith a heavy and cumbersome base. Another important feature is theprovision ofthe vertical bolts 39 which are engageable with the sockets4O projecting downwardly from the sections 28 and 29 respectively of thebearing plate 27 to prevent the frame and standard from turning relativeto the desk when the latter is moved for any reason.

Furthermore, it will be apparent that the stand may be readily attachedto the drawer receiving portions of desks and other articles offurniture of difierent widths, inasmuch as the bearingplate is formed oftelescoping sections which may be adjusted as desired.

Inasmuch as the casting 14 is sleeved upon the vertical sections 7 ofthe standard 3, it is also readily apparent that the bearing 18 for thevertical portion 16 of the arm may be adjusted vertically so that thearm 4 may be raised or lowered as desired above the top of the desk.Another important feature is the provision ofthe adjustable feet 45which permit the stand as a unit to be raised or lowered as desired.

In Figures 7 to 9 inclusive of the drawings I have provided a slightmodification in which the frame 50 of the stand is preferably supportinga holder (not shown) may be ably extends downwardly through the crossbar 57 and is provided with an annular flange 62 that rests upon asuitable ball race 63 mounted on the crossbar 57. Thus with thisconstruction, the sectional bearing plate 65 is preferably slidablevertically on the tubes 55 of the standard and is adapted to be held inadjusted position against the drawer receiving portion of the desk bymeans of a single ad usting screw 66 which preferably threadedly engagesthe liFWflIdly projecting inverted substantially shaped portion 67 ofthe end casting 52 of the frame. As shown, the section 68 of the plateis preferably provided at its outer end with a lateral extension 69having spaced bosses 70 which receive the tubes 55 of the standard andare adapted to slidably engage the same. The extension 69 of the section68 is also provided with an intermediate boss 71 that receives thevertical pivot portion 61 of the arm 59 and slidably enga es the same.Thus the engagement of the bosses 70 with the tubes 55 will effectivelyprevent the frame 50 from turning relative to the desk when the latteris moved for any reason. Inasmuch as the rods 53 threadedly engage thecastings 51 and 52, it is also readily apparent that the frame may bereadily knocked down for shipping or storing purposes.

While it is believed that from the fore going description the nature andadvantages of the invention will be readily apparent, I desire to haveit understood that I do not limit myself to what is herein shown anddescribed, and that such changes may be resorted to when desired as fallwithin the scope of what is claimed.

What I claim as my invention is:

1. A stand for use with a desk having a frame located beneath the desk,a standard substantially rigidly mounted on the frame,

a supporting arm carried by a member adjustably mounted upon thestandard, and means for utilizing the weight of the desk for preventingthe stand from tipping over, said means including a sectional plateclamped to a portion of the desk, and means carried by the frame foradjusting said plate upwardly against said desk and into contact withvertical portions thereof, and means for adjlgsting the sections of theplate to fit the dos 2. A stand for use with a desk having a framelocated beneath the desk, a standard mounted on the frame, a supportingarm car ried by the standard, and means for utilizing the weight ofthedesk for preventing the stand from tipping over, said means includinga sectional plate, means for clamping said plate to a portion of thedesk, and

means carried by the "frame for adjusting the plate upwardl-y intoengagement with the 'desk and preventing the framefrommovin relative tothe desk when the later is move 3. In 7 a stand, a frame comprising astandard having spaced substantially rigid article for said frame,abutments carried by said bearing member engageable with oppositevertical faces of said article of furniture, means for ad usting saidabutments for engaging them with or disengaging them from the article,an upright carried by said frame adapted to rise adjacent said articleof furniture, and an arm pivoted upon the upper end ofsaid upright toswing above said article of furniture. r

5. A stand attachable to an article of furniture, comprising a baseframe insertable beneath said article, a standard mounted on the frame,a supporting arm carried by the standard, means for utilizingthe weightof the article for preventing the stand from tip ping over, said meansincluding a plate slidably mounted upon said frame and upwardlyadjustable against a portion of the article.

6. A stand attachable to an article of furniture comprising a base frameinsertable beneath the article, a standard mounted on the frame, asupporting arm carried by the standard, a plate comprisingtelescopically engaging sections clamped to a portion of the ar ticle,means carried by the frame for vertically adjusting said plate againstthearticle, and means other than said first mentioned means forpositively moving one of said telescopicall engaging sectionslongitudinally of the ot er.

7. A stand attachable toan article of furniture, comprising a base frameinsertable beneath the article, a: standard mounted on the frame, asupporting arm carried by the standard, a plate slidably carried. by theframe and comprising telescopically engaging sections terminating inupstanding flanges, means carried by the frame for adjusting said plateupwardly against the 8. A stand attachable to an article comcal portionsengageable with op osite side prising a base frame insertable beneaththe walls of said article, and means or adjustarticle, a. standardmounted upon the frame, ing the sections upon said frame to bring the asupporting arm carried by the standard, a vertical portions aforesaidinto firm engagel bearing plate comprising relatively movable ment withthe side Walls of the article. sections having bearingportions slidablyIn testimony whereof I aflix my signature. mounted upon said frame andhaving verti- CHARLES S. JOHNSON;

